Stephen Cobeldick
5,430 total contributions since 2014
Suspensa Vix Via Fit
Stephen Cobeldick's Badges
Contribute at least one answer each month for 36 consecutive months
Awarded to Stephen Cobeldick on 20 Jul 2017
Accept 50 answers given by other contributors
Awarded to Stephen Cobeldick on 20 Jul 2017
Answer 3 questions that were unanswered for more than 30 days
Awarded to Stephen Cobeldick on 20 Jul 2017
100 of your answers have been accepted
Awarded to Stephen Cobeldick on 20 Jul 2017
Provide your first answer ever to someone else's question
Awarded to Stephen Cobeldick on 20 Jul 2017
Indice wise reference of indice from another matrix
Use ndgrid and sub2ind: >> A = [0,1;1,1]; >> D = [1,1;2,3]; >> B = zeros(2,2,3); >> S = size(B); >> [R,C] = ndgrid(1:S(1),1...
11 hours ago | 0
| accepted
Convert time to datenum
It is not required to navigate to data directories to read data: D = 'Path of the directory where the MAT files are saved'; S ...
11 hours ago | 1
| accepted
Multidimensional matrix to use for loop
for k = 1:3 X(:,:,k) end If you want to split into a cell array: a = cell(1,3); for k = 1:3 a{k} = X(:,:,k) end ...
3 days ago | 0
How to make a for loop with matrices using n?
>> n = 10; >> A = toeplitz([2,-1,zeros(1,n-2)]) A = 2 -1 0 0 0 0 0 0 0 0 -1 2 -1 0 0 0 0 ...
3 days ago | 0
| accepted
Rename a variable using a string
"Rename a variable using a string" Why bother? Both load and save work with scalar structures, which makes your task easy: S =...
3 days ago | 0
| accepted
Matlab plots my equation wrong
MATLAB has plotted exactly what you asked for, where the y-range ranges over: >> x = -20:0.1:20; >> y = x.^10-1; >> max(y) a...
3 days ago | 1
| accepted
what does this code represents? and why rand() has no value between parentheses?
It defines a function which returns either 1 or 0, where 1 has ~=20% probability. Simpler code: customer = @()+(rand(1)<=0.2); ...
3 days ago | 0
| accepted
please in need help , how can i get all the possibile combination 111 112 121 122 211 212 221 222 for matrix A in matlab , than u
>> R = [0.5807,0.5192;0.879,1.5083;0.6836,1.5183] R = 0.5807 0.5192 0.8790 1.5083 0.6836 1.5183 >> [X,Y,Z] = ndgri...
3 days ago | 0
How can I get and write data from text file?
This code sorts the file data into one cell array C, where each cell in C contains the summer data for one year. The summer star...
3 days ago | 0
| accepted
Error using cat. Dimensions of arrays being concatenated are not consistent.
That is not very well designed code: the regexp is overkill, and the str2num with cellfun is likely not very efficient (as well ...
4 days ago | 1
| accepted
Error: Cannot convert double value 5 to a handle
Most likely sch(ii,1), ii, and h are actually all different classes which cannot be concatenated together. You could easily use...
4 days ago | 0
| accepted
add zero elemant inside cell
Simple indexing does exactly what you need: >> A={[95],[112],[98],[84],[69],[121],[108]}; >> B={[1,2,4],[4,3],[6,9,98],[3,7,88...
4 days ago | 0
| accepted
How do I find closest values between 2 matrices?
Using basic MATLAB only (i.e. without knnsearch from the Statistics Toolbox): >> true_ang = [-40,-20]; >> all_angs = [30.80304...
6 days ago | 0
Passing by reference vs value
"Passing by reference vs value" Neither. MATLAB is more intelligent that either of those. MATLAB uses something called "copy on...
7 days ago | 0
| accepted
Submitted
Convert between RGB and Color Names
RGB to color name. Color name to RGB. Palettes: CSS, HTML, MATLAB, SVG, X11, xcolor, xkcd,...
7 days ago | 30 downloads |
Plotting based on a for loop from a cell array
xyz = 'XYZ'; figure() for k = 1:3 subplot(3,1,k) plot(UA_SEG{:,['Acc',xyz(k)]}) end https://www.mathworks.com/help...
7 days ago | 0
| accepted
how to create a vector with the different sum of two elements of another vector?
No need to use a loop, some simple indexing works perfectly: >> v = [1,2,3,4,6,8]; >> v(1:2:end)+v(2:2:end) ans = 3 7...
8 days ago | 1
| accepted
Save variable as string from user input
There are two overlapping issues here: The non-robustness of string evaluation (which was covered in your other question). Ther...
8 days ago | 4
| accepted
is it possible to divide a decimal number into 3 decimal numbers?
>> N = 1000; >> R = 3; >> C = R+R*fix(log2(N)/R); >> M = reshape(dec2bin(N,C),[],R).' M = 0011 1110 1000 >> bin2dec(M) ...
8 days ago | 0
| accepted
MATLAB : How to keep output values after using return
"What should I do to pass the values of [S,r1,r2,c1,c2] to the caller function after using return?" Nothing special at all. As ...
8 days ago | 0
How to read the details of a '1×1 struct' Cell Array?
Both cell arrays and structure arrays are kinds of container arrays, i.e. they can contain other arrays. In your case you actual...
8 days ago | 0
| accepted
How can I call the variables of MATLAB workspace from a function?
"I don't seem to be able to do it when I am inside a funtion and don't know the name of the variables prior to running the progr...
10 days ago | 1
Sort first column of a 5x2 matrix but keep the rows intact after sorting
Use sortrows: >> V = [13,11,15,26,20]; >> M = [V;1:numel(V)].' M = 13 1 11 2 15 3 26 4 20 ...
10 days ago | 0
| accepted
How to iteratively add elements to a cell array without clearing previous elements?
I suspect that you forgot to actually store the handles data after you made changes to it. The handles structure inside the call...
10 days ago | 0
Splitting Cell Arrays by Delimiter
There is no need to split, just count the commas, e.g.: >> s = {'AAAA,BBBB'; 'CCCC,DDDD,EEEE'; 'FFFF'}; >> n = 1+cellfun(@nume...
11 days ago | 0
Converting a printed set of data to a structure or structure array
The simplest solution that satisfies your description: S = load('olympics.mat','gold', 'silver', 'bronze', 'countries');
11 days ago | 0
Shifting position of an element in a vector from 1st to last
Here is a general solution for any sized vector (not in a single command though): >> N = 5; >> V = 1:N V = 1 2 3 4 ...
11 days ago | 1
| accepted
NEED HELP! in load a text file containing the first one million digits of Pi.
This code imports all of the digits in around one second: >> fid = fopen('data.txt','rt'); >> vec = fscanf(fid,'%1d'); >> fcl...
11 days ago | 1
| accepted
Vectorization of for loop
In three lines, no loop: >> new_im = flipped_im; >> idx = new_im(:,:,1)>new_im(:,:,2) | new_im(:,:,1)>new_im(:,:,3); >> new_i...
11 days ago | 1
| accepted
Submitted
Maximally Distinct Color Generator
Generate truly maximally distinct colors in an RGB colormap, using CAM02 colorspace (much better than CIELAB).
12 days ago | 38 downloads |
